Low became very interested in reptiles as a teenager and discovered several new species of lizard. He named the chain-backed dtella (Gehyra catenata) and had the dwarf litter-skink (Menetia timlowi) named after him.
He works as an environmental consultant, writer and photographer, serves on government committees, and does public speaking. He has written many reports about climate change. He is the patron of Rainforest Rescue. Low lives in Brisbane.
- The New Nature: Winners & Losers in Wild Australia (2002) looks at how animals and plants sometimes respond to human impacts in a positive way. It won the Westfield/Waverley Award for Literature and was listed as a number one best seller in New Scientist (Australia).
- Feral Future: The Untold Story of Australia's Exotic Invaders (1999) was published in Australia and republished in North America. It was listed by New Scientist (Australia) as a best-seller.
- Bush Medicine (1990) and Bush Tucker (1990) were coffee table books, both of which won national prizes. They featured Low's photography as well as his text.
- Wild Food Plants of Australia (1989) has been through more than ten printings and remains the standard field guide to wild edible plants in Australia.
- Wild Herbs of Australia and New Zealand (1985) is a guide to cooking and eating weeds.
- Low, Tim, Wild Food Plants of Australia, ISBN 978-0-207-14383-0